Afraid to breast feed

Ok so please don't think I'm being disturbing or whatever. This is a legitimate concern haha. So like, when my boyfriend kisses/touches/licks my nipples it really turns me on. My concern w breastfeeding is that I won't be able to separate the two and either I'll never be able to let my boyfriend do that again or I won't be able to get past it when I breastfeed. But I REALLY want to breastfeed if I can. Does anyone have any advice haha