. >> reporter: allie gould and jessi serks ol vera were once strangers.. they didn't know each other. what brought them together is unified sports. a special olympics initiative that pairs athletes with and without intellectual difficulties. >> when we first, like met each other and played, we knew we were already friends. >> reporter: now they consider themselves besties. or betsies. >> it was my mom. she was trying to say besty and she said betsy. >> sometimes i have a hard time reading. >> reporter: alli serks their school's agent of positive change. >> making a mold? >> mm-hmm. >> reporter: together they choose to celebrate people's different abilities, rather than their disabilities. >> there you go. oh. >> reporter: sporting spare we're so unified slogan around the country. when it came time for jessie to choose that special someone to take to prom it has to be his betsy. >> she makes me happy. >> i'm very thankful for him. without him, i don't think i would have done as many amazing things as i have done because -- >> aw. >> he's my partner in crim