Yes, the Japanese woman herself enjoys that so many males are watching her. Being a bitch in the eyes of men is even cooler than being a geisha. Everyone can come in her mouth, on her face and breasts. She's covered in cum and she's all smiles. Stallions go crazy for chicks like that!
The girls were looking for fun, riding in the car. Sometimes they got themselves excited. Apparently they wanted a new sensation, so they offered a threesome to a strange young, handsome guy. After some persuasion and conversation, he agreed and went straight to work. The girls hooked up with him, gave him blowjobs, rolling on top, while two were fucking, the third fondled the couple.
The son decided to film his mother. On camera. She gladly agreed, in addition to showing off her feminine charms. Warmed by naughty thoughts, the mother pleased his healthy cock and balls with a magnificent blowjob. And the son did a good job, repaid her in a mature way - he fucked her in the asshole. But it seemed to turn her on even more.