Distending the recievers belly upon anal or vaginal penetration.

Smothering, choking, garroting, underwater, latex masks, plastic bags, manual, either with or without safety limits.

Tail actions:

-moves according to the mood

-be grabbed by somebody and tickle the wearer

-pull the tail

-tail can get caught by a door (ouch!)

Mutate subjects in to having multiple penises, multiple sets of testicles, etc., to help double penetration, or generation massive amounts of sperm.

we use the hand tool only to touch the genitals but why not use it to pet them on the chest/belly/head/legs or even use your fingers on the test subjet's mouth.

The ability to wear clothing while fucking without having to completely remove the entire bottom or top. Anal with a jockstrap on, and tit play with open corsets, full pants with tear in only genital area. Basically isolating the tits, ass, vagina, and penis and allowing clothes to form completely around them.

Interact with test subjects/possible lab partners on them!