بسم الله الرحمن الرحيم
It is lawful to sleep with wife and have sex during the night of Ramadan. Likewise it is also lawful to sleep with her during day time and have foreplay with her. However, if by foreplay one fears ejaculation or falling in intercourse then it is necessary to avoid foreplay.
Oral sex is makrooh and bestiality. [M]
Allah knows Best!
Darul Uloom Deoband