It's not 1950. No one cares if you are having sex with him (except her apparently).  I don't know why her attorney hasn't fired her yet. 

Go by the same playbook. They've spent aftermath of the divorce playing poor single mum syndrome and my horrible exhusband abandoned me blah blah blah. 
meanwhile she was having an affair whilst married to him, while she was in court claiming the poor single mum card, she was hobagging around and had hubby #2 lined up.

She's basically spent aftermath of the divorce playing victim or claiming she is such hot property she could get any man in an instant (what the community also refers to as a hoe), so when exhubby meets a much nicer, younger, prettier and educated woman, batshit crazy exwife plays the whole she's a slutty half naked hoe!!

my husband's ex said the same shi*!! Actually called hubbys elder sister ranting how my husband was no longer muslim, had converted to Christianity for his half naked christian hoe. All along i had been born and raised a muslim and worn the hijab since 20 yrs ago,

sd's confront bio mum who now claims she is a born again muslim woman. Frankly if she does show courts a pic of you having sex with your husband, take legal action against her and ask the judge to order her to cease harassing you and covertly taping you etc in your home. 
if ss is covertly videotaping you, your husband needs to put firm boundaries. 

frankly any skids who disrespect my boundaries and privacy, will not reside in my home. I made that clear to my husband who actually bought another home for me in my name and made it clear they were not welcome due to their toxic crap

Firstly, nurses are allowed to have private lives. 

Secondly, please ensure that your bf's lawyer brings up her terminology for you in court. She is showing utter disrespect for the other parent's partner and should not be using those words in front of SS. THe lawyer should make a point of showing how she is using her language as an alienation tactic ... and alienation is strictly forbidden, I believe.

I can't wait for your attorney to ask that question while she is on the stand. 

Then once it is in the court record, review it with her kid. In an age appropriate manner.  It worked wonders in protecting my Skid from the shallow and polluted end of his gene pool.  He learned to recognize their noxious manipulative stench and call them on it in real time. As he grew more knowledgeable and confident they became more unstable and started to withdraw. By the time he aged out from under the CO at 18, they were pretty much pummeled into submission. Because they knew he knew the truth, facts, history, etc.... once he launched into adulthood it did not take long for them to disconnect completely.  One last toxic effort to get him to pay them "CS" out of his USAF pay direct withholding to help support his three younger also out of wedlock Spermidiot spawned half sibs by two other baby mamas and they crawled into their hole and pretty much stayed there.  He shut down that request with a fairly firm hand.

Everything  you can induce her to put into the court record, gives you more ammo to roll up and beat her about the head and shoulders with.

As he got older my son (Former SS) would dig into our Custody/Visitation/Support file cabinet drawers to do his own research when the toxic drivel spouted by his SpermClan did not pass the smell test.  When he would catch them in a lie it would upset him because he just did not understand why or how they would do that to him. Particularly it would piss him off that they would lie to him about his mom.   So his next visit to SpermLand for visitation would often start with a call out on their lies and him giving them clarity on the facts.

They hated that.

Oh, so he did fire her. Hopefully this one will too. But some are willing to just collect the fees knowing their client will lose. 

Oh come on, that's so idiotic. The most that would happen is that they'd wag their finger at him and tell him to put a passcode on his phone. To me, this is a perfect example of the way in which Family Court is broken. A judge should just throw this nonsense out but they will go on for months or years addressing it. And attorneys who represent clients who bring such frivolous crap to court should be censured.  If she has nothing more against your BF than not liking his GF, it should be immediately dismissed. 

Hubby didn't take them and neither did you so that bullshi* story he left the pic out carelessly for ss is really ss took pics of you both. 
 

op, are you locking your bedroom doors for sex time or when you are sleeping together at night for example? Ours is always closed and even when hubby leaves for work, he always pushes the lock in so door closes after him.

I hate to say it but ... this is worth checking. Should you find any, take them straight to the police.

So BM is claiming that the only reason that she is holding onto private messages, that she likely obtained illegally, between you and BF, is to essentially blackmail you in the event you ever do anything to her... WOW. 

You can easily gaslight this BM. Make her look like an even bigger idiot. BF should tell BM that you guys have never photographed intimate moments, so you are 100% certain that photos do not exist. Tell BM that it is really disturbing to know that she likely put a camera outside one of your windows or she is stalking you from outside the home to capture intimate images. Call her out for being a peeping Tom! Tell BM that it is really perverted that she would do that and then hold onto said photos. If BM claims that SS took them, tell BM that it is really disturbing that BM would pressure SS to photograph intimate moments between the two of you. Tell her it speaks volumes to her parenting that she would want to subject SS to such adult content and that she would be raising SS to believe it is acceptable to be a peeping Tom. 

If she backpeddles and denies doing that, then tell her it is impossible for the images to be you and BF, since you know none exist, and it is really disturbing that she would search the internet for pornography to pass off as you and BF to try to advance herself in court. Let her babble and try to explain her way out of this one. 

OMG, that would be truly cringe-worthy. If it were true, I'd be contacting CPS ASAP. 

Text messages are different from photos of the two of you doing the deed. If BM is claiming to have those, then either she took them, SS took them, or BM grabbed photos off the internet. Either way, call her out on it and make her look like the biggest pervert ever.