nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqn7g5q25ckauql4x6ejruxurhs9wr6gr3genkuferq336ad5v336syaxa49 the ass flexibility is like the leg flexibility. she should train legs flexibility, backbend flexibility and anal flexibility. and also deepthroat training and apnea (hold breath as much...