Jizz

Rogue enjoys the more private areas of Charles Xavier's School.

sexysuperheroines

Charles Xavier's one true enemy. [Ultimate X-Men #49]

Marvel

Squirrel Girl with cameo by Charles Xavier (in a newspaper article) [SPOILERS] [NSFW]

comicbooks

[Spoilers] Charles Xavier would have loved this (Uncanny X-Men #600)

comicbooks

Charles Xavier x Erik Lehnsherr (Days of future past NSFW)

yaoi