Honestly, I put a bra on when I get up because I usually exercise in the morning. Then I shower and put a regular one on.  I take it off for sleep.  On rare occasions, say a vacation where I'm not exercising right away, I might go braless for a bit, but I'm not super comfortable doing that around anyone but DH.  I don't enjoy feeling like my boobs are bouncing around in the middle-aged woman position.  I don't think it's because I've been taught boobs need harnessing, I just don't like it.  As I said in the other thread, I think it's more similar to DH not liking boxers because they are too loose than it is to some societal indoctrination into the sexualization of female anatomy.

Also, I don't find bras so awful, what are people wearing? Underwire is the devil, but otherwise, they don't bother me too much.

I said it over there and I will say it here, if that OP is legit he needs to be teaching his son that breasts are not sexual objects. As for at home, whatever floats a persons boat. I am controlled enough in my life by my job I'm not having somebody control what I wear in my own damn home.

My subjective definition of modesty for my body is: does this clothing (or lack thereof) make me look like I want sex from DH, lol. 
If so, I don't wear it around kids, step or bio.

I don't think DH and I have ever discussed this but ONE time in regards to OSD wearing tight, tight leggings and short shirts.

At home, I wear a bra or bandeau type bra or a sports bra all depending on mood/what I'm doing. I do go bra-less if I have a tight tank top on but usually wear a sweater or something over it. Very rarely do I just let it out - it's more comfortable with some support, and it's  usually just with DH and I. I know YSD notices but I don't care.

That poster never did specify what the wife wore. I'm pretty modest and i make my kids dress modestly in "public" areas of the house, meaning cover like a swimsuit would cover. I will even go so far as to make my daughter layer a cardigan over a crop or tube top when leaving the house. The fact that i'm modest is one reason i'm so big on the bedroom being private (adults only), since i'm not comfortable with nudity in the general house. I don't always feel like "covering" and i think everyone should have a place where they feel comfortable in whatever state of dress they want.

But, that OP's wife is not a kid, she is an adult and it is her home. I know that i am more conservative than most.I was definitely not ok with my SO's daughter coming to dinner with her nipples showing, and i try to be fair in that if i expect others to abide by a standard i think it should apply to all, if possible. If OP's wife has different feelings than OP, they probably should have worked that out before getting married. 

I hate bras because I'm big, I'm sick of them and I don't have to do anything I don't want to anymore.  Lol.  But I put one on when stepsons, sons-in-law or grandsons come over.  Can't exactly articulate why but it has something to do with respect for them.

Realizing that this board may have anyone from religious fundamentalists to nudists, and realizing that my own opinion is no more valid than others, i am curious - for those who are often topless (or otherwise unclothed) at home, do you have a teenage or adult stepdaughter? Are you also ok with her being topless in common areas?

A common theme on SP boards is SDs dressing scantily around DH's. Is it just that different families have different ideas on what is acceptable? Maybe this is something to recommend people talk about before marriage? It often doesn't come up until people actually live together. 

I have large boobs. I'm the sort who takes my bra off as soon as I get home, and often go without one around the house/property in Summer. DH and I have a joke that If we want company, just send Julie outside without a bra on because there have been many times where I've been caught commando by someone unexpectedly stopping by.

So unless it's just DH and me, I prefer to be harnessed up in company. But again, I have large, noticeable breasts.

I always wear a bra (even swimwear has underwire) unless I am bathing or having sex. I am a DD lady here so they are out of control anyway! LOL I will say that my sister is the same way (big breasted) and even though I nursed 2 kids for a year each and she is child free my boobs look like a 20 something and hers are a swinging at her belly button but she never wears a bra at home! 

As for modesty- I wear a tank, I wear short shorts to sleep. I wear those around the house with a light robe over myself. I make sure my daughter wears a robe around too. She is developing a womanly body at almost 13 and she has 2 not biological brothers in the house at times. I don't think they would ever cross a line but I do think that she doesn't need to be flaunting what her momma gave her around. 

The boys- They have to wear a shirt and shorts. Both SS15 and BS14 would wear just boxer briefs around if I let them. I make them wear clothes. No one needs to see all that! 

Since I have SS20 at home (special needs) I will probably always have that standard because it isn't fair to him- especially since he is neuro atypical to have my nips in his face and say- don't ever get aroused by all these boobies! 

Men love boobs. Yes, they serve a purpose to feed babies but they are also used for sexual stimulation. My husband would die a happy man with his face in between the girls. You are fooling yourself if you don't think teenage stepsons or daughters for that matter won't look or be potentially aroused by a non biological woman's breast hanging out or clearly visible due to not containing them in something even as simple as a shelf bra tank. 

No bra at home unless we have company.  I wear summer dresses and tshirts in summer and sweats in winter so once I'm home it comes off! 

As long as your genitals are covered, that's "modesty" in my home. We don't go topless. I didn't want to see my SS's hairy moobs, so everyone wears shirts. (Until the 4 year old decides to whip his off and put it on the pug.)

But if I can "suffer" through watching SS's moobs jiggle under his shirt without staring or commenting, he sure as shit can see my breasts move under my shirt with the same courtesy. 

He walked in on me breastfeeding baby face and I thought he was gonna die. Apparently my big boobs jiggling around the house since he was 6 didn't hypnotize him into sexualizing me in the least. I never caught him staring at my chest because he was taught oogling people is wrong. My DH never even thought about asking me to dress differently. It doesn't make him uncomfortable when people look at my chest because he doesn't view me as a possession. He's simply teaching his sons to respect women. Huh. Weird.

During the day I'll wear a soft bra since Im nursing. It's just DH my baby daughter and I most of the time. At night DH and I sleep naked and we'll even go get the baby while nude. 

When my In laws, parents or SD is here I'll go braless after I change into PJs and wear a hoodie so they don't see my nipples. I'll sleep with PJs if they're there, but take off the soft bra and put it back on in the morning.

I'm mostly in a tanktop and underwear at home, or less. I'm a total exhibitionist and don't care if people look at me through the windows. SO always gives me sh*t but I just don't care. And I'm fat so far from perfect body and still don't care. I'm so much more about comfort these days than "modesty". If I want to go braless in my sundress, then I will. 

This may be TMI, but DH would love it, if I walked around bra-less all the time. That said, I've started being more conscious of wearing a bra around my SSs. They are now in high school and I would feel creeped out if they were checking out my breasts. I don't wear a bra in the morning before I've showered, which means I often don't wear one for breakfast on weekends, but other than that, I have one on. I will often take it off when I'm settling down for the day and watching television or reading, but when SSs are at our house, we don't usually watch television together...that is my alone time. 

I honestly think that it's a good learning experience for boys to learn not to be creeps about things like a woman's breasts. I fall into the camp that thinks that men can avoid leering at breasts if they want to, they just need to utilize some self-control. DH will never teach that to SSs and I'm not interested in having that conversation, but women are people and we deserve to be seen as such, and not sex objects all the time.