"I like big autobutts and I can not lie" by Fred Perry - http://g.e-hentai.org/s/5fb60d71a2/908035-1
This comic hits me on so many levels. Not the fanfiction aspect, but the idea being a perfect fit for a giant woman. I love Fred Perry's recurring theme of this small, well hung man being an ideal match for a large capable woman. I love the playful tensions between their personalities, and that he's accessing a part of her sexuality she might not have explored with other partners. Gosh darn fun.