Any Sexual Act Involving Dragon Crown's Sorceress with a random/faceless/Humanoid enemy. - Enemy is entirely down to artist, only catch is Sorceress must be enjoying her treatment/moaning in pleasure/no hat.
Robin let's the guy grope her like below first image and then to the right a follow up of the second image getting fucked. (Third image to help on the colours)
Santa Erza in a similar scenario , outfit, and expression, her boob exposed. Remove the shadowy border from sex pose and remember those black stockings please. Remember she is busty.