Koisuru♥Kyuukyuubako

Momo never cared about guys. She was always a jock with a spectacular throwing/catching arm. One day, however, at the start of a new term, she meets a guy who throws her off her feet. He's part of the baseball team and to get close to him, she joins the cheerleading team in hopes of cheering him on at his baseball games. After a series of event she wants to join the female baseball team but she's stuck with the cheerleading team. Who knew the cheerleading team was full of surprises...

(Source: Dreaming Scanlation)