I also think I'd be the eager cuckold, simply as I love the idea of my gf getting fucked well by hung bulls and that I simply have to let her have her fun with them as the only way I can please her completely is by licking her pussy and not with my small dick.
Damn I would so love to see her gangbanged by some hung bulls, preferably nonwhites, Her pussy has not been used by anyone else but me so far and I only have an 4.3" (~11cm) cock.