GENT-142 - A sporty older sister whose whole body is an erogenous zone, is it okay to bully her until she gets pregnant?

Doujin pregnancy NTR 500,000 copies! Aiming for an unprecedented hit, I started drawing erotic art with the beautiful girl I admired, and ended up in a mutual masturbation support relationship. I thought I might actually become lovers with the girl I had erotic fantasies about... but behind my back, she was being completely trained as a sweaty gym teacher's sex object... and she started trying to get pregnant in front of me!? Jealousy and excitement made my head glitch, and I felt like I was overflowing with sperm...