I assume you mean that cool thing some guys can do where they consciously make the head of their dick swell and kinda flex it? Yes, I do enjoy that, especially if his cock is down my throat or he just slammed it as deep as he can go and holds it in while I writhe. If not that, I have no idea what the hell you are talking about.
There's also that funny and quite pleasant bouncing movement we men can do with our dicks, by using the bulbo-cavernosus muscle. Similar to women doing Kegel exercises to turn their pussy into magically moving things , men can make their dick dance and bounce. When inside a pussy, this movement is like knocking on heaven's door with my dick... I did that with women, who also regularly do their Kegel exercises, and we had a great time and a lot of fun, with me moving just that one muscle inside her, and her squeezing my cock gently with her pussy. Since I swim in both oceans, I also have the sweet experience of anally receiving dicks in me... and feeling my lover bouncing his dick, while it is in my anus is so wonderful... so, while I'm definitely not a girl, I know the great feeling of that bouncy movement. Wiggling bare toes, ~*Ganesha*~