Chiro and Tamako

Chiro and Tamako (Chiro to Tamako) is a Japanese anime series based on the 1956-2001 manga series created by Waku Yaniko and published by Shogakukan.

Plot
This anime tells the story of Chiro Mataku, a 14-year old boy who tries to stop Tamako Marinata, a 14-year old witch, from taking over the world.

Ond of the frequent running gags is that whenever Chiro foils Tamako's plans, he would have her go into his father's garage and force himself onto her (at least offscreen).