Kim Kardashian touched a shark during a trip to the aquarium.

The 30-year-old socialite joined her 21-month-old nephew Mason and sister Kourtney for a trip to the Mystic Aquarium in Connecticut on Thursday (29.09.11) and the trio were allowed to get up close to a variety of sea animals.

Kim got particularly attached to the sea horses after seeing them.

She tweeted: "Drove out to Mystic, CT & took Masey to the Aquarium here! I love it here! We touched penguins, sharks, sea lions & even a whale!!!

"All I want for Christmas is a sea horse! I've always wanted one! (sic)"

Kourtney, 32, was just as impressed with the aquarium as her younger sister.

She wrote on her twitter account: "Thanks for the memories Mystic, Connecticut! The aquarium and seaport were very special! @KimKardashian and I enjoyed. (sic)"

Kim and Kourtney have spent a lot of time together this week, and on Tuesday evening (27.09.11) they were joined by Kourtney's boyfriend Scott Disick and two friends for a night of bowling.