Yello - Mating Rules (Patreon)

Yello was clearly a bit overwhelmed by the vigorous thrusts of the artist, who tried to live out his  feverdream of impregnating a hybrid girl.  Yello, by now very heated up and blushing heavily, nevertheless tried to explain to him that certain genetic incompatiblities are there for a reason.  But that did not deter him for one bit. Even after  a prolonged session, he was still rock hard, and apparently tried to perforate her cervix for some reason.