Sounds like you need to communicate your desires. This is not limited to extroverts. It’s harder for us introverts but not impossible.
I’d ask for them to stop. If this isn’t followed, something written. If this isn’t followed, time to involve someone higher. I’m very reluctant to involve HR, they’re going to fuck with you very likely. However, your supervisor’s supervisor might be able to help. Important to slowly escalate and make a paper trail if the initial verbal ask doesn’t work out.
Also, did I read that correctly that sex is being discussed? As in sexual intercourse?
This is funny looking.