WHAT!?? Rant!

So my boyfriend told me he has a thing for me. I'm not sure how i feel about it. I've never tried it and he said I'd be the first person to do it for him. Although the thought kinda makes me uncomfortable I love him enough to give it a try, A one time deal. Just to see if it's something that he truly does like. However I don't think it's something id enjoy doing ever. I actually personally think it's a bit gross. If it's something someone likes I've never judged, to each their own but it's just not for me. I don't know if anyone has advise on this to make it less uncomfortable for me or to make it more enjoyable for me. It'd be much appreciated to get feed back!