Tightening of the anus is performed with a butt plug. You should choose a short one with a big head (1.5 inch and a narrow neck 0.5 inch. When such a butt plug is inserted into the anus, the anal muscles begin to contract around the neck of the butt plug. contractions become stronger over time...
Every pussy is beautiful. Every pussy is different. In particular, the distance between the anus and vagina (the perineum) makes a big difference in a woman's sexual performance: If the gap is small, a woman can orgasm much more easily than a woman with a longer perineum.