I really like the sex scene animations.
Nevertheless as i mentioned before the you might want to remove the black outline on the cum in the cum-scenes, and also that double-loop of the cum animation.
Make the cum-juice all-white with a bit of transparent gradient smoothing on the edges
Also, instead of looping it, try to make the animation last longer. Maybe it would be better to slow it down and increase the number of frames of animation, so it looks more dramatic in effect.
Also, I understand the characters are made of often multiple body-parts in the animation, and the smashing animation of massive boobs are really awesome! Nevertheless the multi-body-part animations sometimes don't line up correctly. For example Alyssa's New Toy scene has problems with her pubic part, and also Manjula's Dancing Cobra scene (her hips and legs don't connect correctly).