Had an idea for gen 5 Simisage, Simisear and Simipour optional event where the MC is walking and the three battle each other to mate with him but once he grows his dick the one who won gets a little scared but the other two then push her forward with a smile and after seeing her pleasure want to join in sooner and they all get big bellies like the lake trio. Could be called Simiane sisters since they all share same first name.