I understand that it's important and all, but it's re-read it the FML with "euphemism" and "aneurysm" swapped around XD But seriously though, FYL

Next time that happens give them the raised eyebrows and say 'have fun' then wink

Just put an actual pencil sharpener down and tell him to stick his pencil in there, not your daughter. Then kick both their asses.

how old is your daughter? if they are,16-17+ its time to give her the talk about contraceptives and what not. anything under still talk to her about why she is too young to do that, how much work it will be if she does end up having a baby or an std, and how she will have no sex life there as after if either situation comes to fruition because the std will make no one want her ( depending on if its curable) make sure she has a visible or invisible (invisible meaning you go all James bond on there Butt's by trailing at least 10-15 feet behind them when they go place and any place you see him disrespecting her you can call a "time out" by texting her discretely to explain to her on the side lines away from him to be like that's not appropriate) "chaperone"next time they hang out or say that every 10 minutes you study with this particular friend you will come into check on them. So that way they are not sneaking around behind your back and at least you know she'll be safe not make any decision or get into any situations that are too emotionally scaring or socially too off putting.

If she's not mature enough to say sex and have you know what's going on (in your home) she's not old enough for sex.

I feel bad for you. Your daughter's just a bit stupid, but I wouldn't recommend calling her out on it. Just like the man who can understand Chinese and knows what the Szechuan staff thinks of him, you have a secret weapon. Use it wisely and when you're bored.

She is subconsciously sending you a very clear message, and expects you to react to it. My sex talk was age 13. Not too early , as it turned out, if things are told with love and respect for what can be heard or what questions are hard to word out, and answers are given with deep thinking and truthfulness. That is a part of parenting that mustn't be avoided.

I mean, I personally just would have told her that she isn't studying with him any more, and that she isn't gonna be having sex with someone whose dick is thin as a pencil.

if it were me, i would tell them to be responsible and safe about sex. if they want it, they can have it. responsibly.

If they're that dumb as to think you wouldn't realize, how are they even considering sharpening?