It's not whether it's smooth or not, roska1232, it's not remotely flexible - and as such, with enthusiastic use, could do an awful lot of internal damage: peritonitis for example!
That shot glass of cum should strengthen him for another round, but I suggest that he use either a dildo OR the real thing! (Wooden objects are hazardous to put in his boy cunt)!
Should have been me and not a bit of wood:)