I caught my twin sister having sex with my boyfriend?

The age difference is fine. She may be too young but she has started having sex now and is not going to stop. You were wrong and sexist and stupid to treat the bf like that since it was both their decision.

He wasnt doing anything TO your sister he was doing it WITH her. Telling your parents will make them never trust her, lock her down, keep a hawks eye on her and make her feel dirty, rebel harder and hate you all. GIVE THEM THE MONEY BACK AND TELL THEM TO BUY CONDOMS WITH IT.

Be someone your sister can talk to about sex and take advice from. THAT is the best way to protect her.

The truth is she's having sex. NO ONE is going to stop her. I don't know your parents so I can't say if it's a good idea to tell them or not.

Are they going to blow up at her and put her on complete lockdown? If yes, you probably shouldn't tell then, because she'll just try to rebel and she'll be miserable. Then you have to make sure they have the condoms and birth control they need.

If they're the kind of parents that even though are not happy with her choice but will still get her birth control, condoms, and information, then yes, you should tell them.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.