"Angling", "Rocking", "Shallowing", "Pairing"...these are scientific terms for techniques that women (and their partners) use to make vaginal intercourse more pleasurable. 

Research article: 

Hensel et al. (2021) Women’s techniques for making vaginal penetration more pleasurable: Results from a nationally representative study of adult women in the United States 

Link:

Women’s techniques for making vaginal penetration more pleasurable: Results from a nationally representative study of adult women in the United States | PLOS ONE