（highest quality，8k)，two men，A boy inserts his penis into a young man

（highest quality，8k)，two men，A boy inserts his penis into a young man's anus，((anal sex:1.3))，((crawl on all fours:1.1))，two boys copulating in bed，fuck from behind，erection，(dorsal position)，elaborate body structure，orgasm，gay couple，skin head，anal sex，Completely naked，not wearing underwear，two people in love，cheeks are red，(Poor physique:1.2)，brown eyes，romantic，Splashing semen，Semen splatters all over the body，keeping the body in close contact

bad anatomy,long_neck,long_body,longbody,deformed mutated disfigured,missing arms,extra_arms,mutated hands,extra_legs,bad hands,poorly_drawn_hands,malformed_hands,missing_limb,floating_limbs,disconnected_limbs,extra_fingers,bad fingers,liquid fingers,poorly drawn fingers,missing fingers,extra digit,fewer digits,ugly face,deformed eyes,partial face,partial head,bad face,inaccurate limb,cropped