Al-jawab billahi at-taufeeq (the answer with Allah’s guidance)
1) Yes, it is permissible.
2) It is permissible for husband and wife to see each other’s private parts. However, It is disliked and more appropriate not to do that, because it was not confirmed that the Prophet (sallallahu alaihi wa sallam) did such. The fact that he did not do it, is from his best manners as he was bashful, so you should follow the example of the Prophet by not looking at the private parts, and this is more appropriate. Nabi (Sallallaahu Alayhi Wasallam) has mentioned, ‘Modesty is part of Imaan (faith).’ It is, thus, necessary to behave and exercise in a modest manner. This ruling also applies for shaving each others (partners) private part hairs.
And Only Allah Ta’ala Knows Best.
Moulana Qamruz Zaman