>>93066901You should. Don't mix both types of penetration unless you want to get the other girl a serious infection down there. It's barely safe only when they do deep cleaning. And even then, Pros at porn will tell you it ain't worth it unless they have gone through a full colon cleanup.
>"How do you know?"Interviews in YT and 18+ sites. Apparently a lot of thought and prep goes into "generic stepsister agrees to fuck loser bro video #34266", otherwise injuries happen and even lawsuits or permanent scarring (or death) can happen afterwards.
Knowledge is fun.
