Sketch YCH 54 [OPEN]

Looking for a few participants for a science experiment~ I kinda started this with herm characters in mind, but I guess it doesn't have to stay that way, if people with non-herm characters are interested.

So for Slot A, it can be any species, but should have a feminine body type.  Slot B can be any species, and the character should have a penis.  

If you are interested in a spot, feel free to leave a comment letting me know which spot you are interested in and leave a link to ref of the character you own that you want in the spot.  No guarantees that your character gets picked!

I will leave this open for about 3 days to give people a chance to see it and comment. Thanks!