Is anal bleeding normal after anal sex?

Not if routine. Rectal bleeding following anal intercourse could be due to several causes. If the recipient is not accustomed to this practice. Or if the activity is exceptionally rough, and without proper lubrication and foreplay, there could be some tearing of the anal mucosa. Otherwise, bleeding could be an indication of internal or external hemorroids. If bleeding continues, consult with an appropriate dr.
Nope. Hemorrhoids are normal blood vessels that live in the anal canal, and friction or rubbing (like hard stools or anal sex play) can cause them to bleed. While this is usually not serious, it can cause chronic hemorrhoidal problems. Try to be generous with lubrication, and gentle.