Absolutely....the feeling of the sphincter slowly giuving way, being disciplined, changing for ever.....the woinders iof anal destruction, the feeling of tight anus being transformed into male vagina
No one who has ever felt the feeling of being slowly expanded to finally have the whole hand in a boy's pussy can imagine the feeling one goes through it's marvelous!
Amazing to see the steady preparation....first a finger wriggled inside, then two, then , three, then four fingers....stretching, dilating, distending....then four fingers from both hands, pulling the sphincter open, stretching it apart, breaking its tight muscular hold, then pushing the swan head , finding resistence, perservering until the knuckles slide past the sphincter and the whole hand is inside....a beautiful success , opening him to a world of fisting to come....and how wonderfully the sphincter twitches, gapes, closes, gapes as it is changed permanently.