Vintage Incest photostories comes from Exciting #21
A magazine that came out in July of 1982.
Lotte has the hots for her mother’s boyfriend, Henrik. When her mother leaves the room, Lotte takes the opportunity to seduce him. She thinks she is being devilishly indecent, but Henrik reveals he and her mother had long agreed Lotte was in need of a good boning. And together, the horny couple is more than happy to give that to Lotte.
EXC 21 – Family Affair.pdf