1.   Anal sexual penetration.

2.   But in a typical progression, the relationships moved gradually into touching and groping, and in some cases sexual penetration.

3.   Prosecutors in rape cases have always had to prove that sexual penetration occurred.

4.   Vaginal sexual penetration.

5.   In a landmark ruling, a Paris court ruled Wednesday that only sexual penetration can constitute rape.

6.   The crime used to be called felonious sexual penetration, Cuyahoga County grand jury supervisor Kathleen Craig said.