The slender beauty Hikari appears in this popular series that develops a new erogenous zone for women, the Spence gland! The Spence gland is the G-spot of the breast! Developed by a specialist in Spence gland research, she experiences her first breast orgasm! She arches her back and screams in orgasm as she drools at the new level of pleasure! Her breasts, which are already highly sensitive, turn into erogenous zones! She faints and ascends to heaven with breast stimulation sex! She collapses and urinates when she is teased with a Spence toy! Nipples are released for sex and she has a convulsive orgasm covered in bodily fluids!