Abstract: Sexual performance of bucks is enhanced by viewing the mating activities of the other males prior to being placed with sexually receptive sheep. This same experience has no effect on the sexual performance of rams. In this study, 15 rams and 15 bucks were individually permitted to sniff and nuzzle the genital region of an oestrus female and engage in before mating behaviours. In the sexual stimulation treatments, bucks were found more sexually active than rams (p<0.01). However, sexual stimulation did not affect the subsequent sexual performance of either species. Bucks and rams did not differ in the number of completed matings, but bucks exhibited more mounts without ejaculation (p<0.01) and more mounts per service (p<0.01) than rams.