A cock, no. And I never will (you all know why). I've had a dildo in my butt many times (my gf's strapon, I love it when she fuck's my ass ) and she's also put a vibrator in my butt many times :nanner:
I took a really big shit once, I mean this thing was enormous! I had eaten at PF Changs the night before and when it came out, I was like damn thats got to be a World Record! In length anyways :dunno: But I assume thats how it would feel :dunno: