textless promo cover for Heroes for Hire Vol. 2 #13 showing Misty Knight, Black Cat, and Colleen Wing tied up with their hands above their heads and tentacles reaching up at them as they look distressed, their chests are thrust out, Black Cat and Colleen's jumpsuits are open in a V shape showing the centre of their breasts as the tentacles reach for it, Misty as her back arched 90 degree with a tiny torso

That Infamous Heroes for Hire tentacle cover

This is a relatively old cover I'm surprised hasn't been on this blog before but I can't seem to find looking through the archives (if you find it let me know).  It was pretty controversial when it came out given how much the cover evokes a certain genre of... non-consensual tentacle art.  That the women are all reacting the way they are and details like how Misty's pants are being pulled down doesn't help the implication that they're being assaulted. >_<

Also, ouch, Misty's back.

The cover also came out around the time that infamous Justice League panel with the DC heroines in similar poses came out, so that also added to the discourse about women's representation in comics.

(Cover of Heroes for Hire vol. 2 #13, Marvel Comics, submitted by anonymous)