Swap⇔Swap

is a Japanese four-panel manga series by Tomekichi, which began serialization in Houbunsha's seinen manga magazine Manga Time Kirara Carat from October 2014.

Plot
Two girls, Haruko Ichinose and Natsuko Nikaido, bump into each other by accident, resulting in a kiss and them swapping bodies. The only way to swap back is to kiss again...

Other Sources

 * Wikipedia (Japanese)