Yin Shin (aka Ivy Yi) plays a betel nut girl in Help Me Eros. We see Shin’s breasts and part of her ass during a sex scene with the Lee Kang-Sheng. The scene is in a very bright room and involves some interesting positions. Afterwards, we see Shin lying down on the bed nude. Shin goes to town on Kang-Sheng’s ass and gives him an implied bj from behind. As Shin moves around we see a pretty explicit beaver shot.
Kang-Sheng then has a threesome with two other betel nut girls. Lots of tits and ass from both girls but I don’t think any nipples were shown.