This feels oddly difficult to answer. Where's the line on being a "sex comic"? Michelle Perez & Remy Boydell's The Pervert would certainly classify as obscene but I own it for sad trans reasons. I used to have a subscription to Heavy Metal and still have those issues kicking around somewhere, but the eroticism in that is usually lame old man porn so I'm not getting off to it.

So really it's only a handful of comics that I own that I consider actually hot, Be Kind My Neighbor by Yugo Limbo is at the top of that pile. So good I bought it twice after I lent my original copy to someone and haven't heard from them in a while. Also deserving a shout out are Alec Robbins' Crimehot and HA's Chromatic Fantasy. I think I'd like more, but it can be difficult to find stuff that's both hot and artistically compelling physically.