I don't remember a lot from this story. It was a guy, who would learn all there is to know about a topic when he was interested in it.
A girl (he had asked out before and that had shot him down) hears from another girl about his sexual prowess and wants to try. I think under the pretence of tutoring from him she goes to meet him with her friend.
Later on they have a sex session and for whatever reason (I think something with how he handled her boobs) she slaps him and leaves.
I still remember that when he taught her there was playing with an ice cube involved and he explained something about how the right pressure while kneading her boobs can feel special because of something to do with breast milk channels.
Anyway they have a second such meeting and she enjoys it. I remember her also getting jealous of the friend that introduced them at some point.
Basically is a love story, I remember that the guys father is also autistic, but his mother isn't. I think the guy is also pretty wealthy.
Read this multiple years ago, any ideas?
