I need help

This is a bl manga. The story is about a boy who got addicted to m*sturbating and his daily routine is doing it in 5 at the morning before school. one day, he purchased 2 magic dildo that if a man touched it the dildo will change shape according to the size of the one who touched it. Then he got a crazy idea of going to a bath house and there he saw a man with that carries a massive weapon down there. He tricked the man to touch the dildo then from that day on he uses the dildo not knowing the dildo will send sensation to the man he met in the bath house. That's how the story move.....


Please help me find the sauce