Neptune, Noire, Nepgear, Uni from Hyperdimension Neptunia being penetrated by tentacles, while kissing eachother (Neptune x Noire, Nepgear x Uni). The girls are receiving creampies, with semen spurting all over the place, covering their bodies.
References:
Neptune:
Image
Nepgear:
Image
Noire:
Image
Uni:
Image