I'm a virgin while my bf is not. Our relationship have been getting spicier recently. He touches me all the time, while I tried to give him a handjob two times, and both times he couldn't finish. He says it's because he has a short frenulum, so it hurts without lubrification. I asked him to buy lube, but I don't think he did. I confess that even though I don't think any less of him for that, it makes me lack the confidence to initiate intimacy a little bit. Also, we might be a little incompatible sexually. Even though this is not a issue for us by now, I'm not sure if it'll become one in the future, since he seems to have a higher libido than mine. I've been getting off lexapro so this might be fixed soon.
Now, one of the days we were talking about sexual fantasies we had, and he mentioned he wanted to try oral. I really want to make him happy and have his needs fulfilled, but I'm just so not into the idea of sucking him. This is a total mindset thing, being raised by a conservative family, sex is seen as a taboo. When I imagine myself sucking him, I think that I'd look so disgusting. I start seeing myself a slut, and I wonder if he'll think the same. I know he won't, but the way porn portrays blowjobs just seems so disgusting for me. I would TOTALLY be able to do it if we were in the dark. But I'm not really sure if he'd enjoy the idea, I think he might be offended by the way I only want intimacy when we can't see each other.
What should I do to surpress this prejudice I have?