As mentioned in the other reply to this post, if they are advertising reverse oral and rimming then you are sorted.
Like one of the other punters said on this post, no better feeling than a girl starting to cum, her body and legs will start to shake and then the back will arch off the bed and then the moans, I hang onto their waist until they kick me off. Hahaha. I have to say I am very very very good at it, most girls say WOW your tongue amd the way you do it is amazing. I have never failed to not make the ladies cum. I get so turned on doing it. ❤️