My wife said I could fuck her ass if I let her use a dildo on mine. So, she grabbed out her biggest one, about the size of my fist and brutally reamed me out for a while, I couldn't sit right for days and the pain was unbearable, I couldn't even scream. She just... kept going, she kept thrusting it in and out, I've never felt anything as unbelievably painful as that. After I recovered finally I wanted her to hold up her end. As soon as I put the head in she yelped and tried to pull out, but I held her down and fucked her til I came. Then I grabbed the dildo she used on me and a few other dildos and forced them into her ass as far as they'd go.