I'm just not sure I want to go the whole way all at once.

I've been in a secret relationship with my half-sister (23F) for just over a year now. We've had sex before and I'd say it's the best sex I've ever had (I'm 19M).<br><br>We were talking about our sex life and I told her I want to try anal (I'm the guy so we'd have to do it doggy style). She seemed a little apprehensive but she's not entirely against it. I told her she needs to do it slow and not ram it in because I want to feel the size going in and not try to deal with too much at once.<br><br>But now I'm not so sure if I really want to do it. What if it hurts?