Rias part

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.

Elsie riding Natsu in amazon position

Santa Erza banged in similar pose, nice and busty, enjoying. One boob exposed.

Erza in her Santa outfit (although the top will be lowered to have boobs fully shown) with the same proportions and angle as example shown, taking a heavy load already on her breasts and some on the top of her head and face. Mouth will be open and her tongue out. External obviously ignore the dream bubble and the guys . External

Erza in fair woman attire fucked ina. Similar scenario to this, clothing torn appropriately