Question Summary:
Hurmat al Musaharah between a man and woman

Question Detail:

I wanted to ask whether it is necessary for musaharat to take place for a full erection to occur? Also, if there is only slight movement of the provate part, does this constitue enough 'shahwat' for musahara to take place. Please could you reply to my email, this would be really appreciated by me Jzk khair

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh
According to the Hanafi Mazhab, Hurmat Musāharah will be established between a man and a woman when one of them touches or kisses the other (without the barrier of a thick cloth) with Shahwat (lust). It is necessary for the male to have an erection with desire in order for the ruling of Hurmat Musaharah to be established. 
 
And Allah Ta’āla Knows Best
Ismail Desai,
Darul Iftaa
 
Checked and Approved,
Mufti Ebrahim Desai.