If you look closely, Stella is wearing big sis Vanessa‘s Pleasure Doing Business metallic strapless banded dress!
Sammi tweeted after the party, “SOOO much fun tonight seeing a bunch of really close friends at @madisonpettis22! I hope you had a wonderful birthday! <3<3"
Earlier in the day, the BFFs joined Lemonade Mouth star Blake Michael for some bowling.
Blake, who also just had a birthday — turning 15, tweeted, “celebrating my birthday with @MadisonPettis22. THIS PARTY IS GOING TO BE CRAZZZY LEGGO! :D”