I have a few oc's but i'll post my brother trio. Note, none of them have names.
Blue I have a very sexual personality for, not in the sense that he fucks everyone, but he is fairly dirty in speaking. His special talent is cooking italian food specifically, and it really has nothing with his personality to do.
Green is flirtatious and not shy around the ladies, he'll woo any pony. His special talent is wooing other ponies.
Yellow is rather shy but can throw a fit and get extremely mad if you mess with him all too much. His cutiemark is tomatoes, and i haven't thought of a meaning to it yet.