<3 abs afro anthro balls big_breasts blush breasts canine dickgirl dickgirl/male dog duo erection eyes_closed fantasizing fellatio headband humanoid_penis intersex intersex/male kostos_art male mammal musclegut muscular muscular_male navel oral oral_penetration penetration penis rebecca_(sweet_temptation_club) rhinoceros sauna sex sitting size_difference slightly_chubby sweat thought_bubble towel