One is allowed to have kissing and hugging if he has control over himself, but it is better for a youth to avoid such things as these things may lead to intercourse.
(2) It is allowed to have intercourse between iftar and sahr, there is no precondition for the same. However, one should not miss salah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband