From behind.

The young man was consumed by lust and it was apparent to Shoko that he was not being sated with just fucking Mari's pussy. After she had another orgasm he pulled his erection of her snatch.

"No..." she protested at the emptiness of her pussy of cock.

He answered by grabbing hold her small waist and then climbing up on the sofa and squatting over her upturn butt with the tip of his cock aimed at her starfish.

"I... I... need it now," Mari sighed.

He nudged the cockhead against her asshole.

"Oh, no..." she whimpered as she felt her virgin asshole being penetrated by his thick cock. If she had any second thoughts she did say anything other than moan when he started fucking her from behind.

"I am... cumming!" she cried out. He paused temporarily to let her squirt out juice from her pussy but resumed fucking her anus when she was done.

Dr. Sugimoto wished there was another camera so she could get a better view of the young man's cock driving hard and deep into Mari's rectum. She could tell by Mari's cries she enjoyed anal sex and the doctor wondered if she had experienced being double penetrated — it was something she enjoyed herself.

"I am breaking!" Mari screamed as she climaxed again.

The young man jammed his cock deeper into her asshole while she released a geyser of juice onto the floor. He thrust a few more times before letting out a loud grunt and then pulling out. Semen gurgled out of Mari's newly deflowered sphincter.

When she recovered she slid down off the couch and knelt in front of him to take his semi-erect cock into her mouth.

"That was somehow embarrassing for me..." she whispered with a smile.