Anonymous7 puttar,
Yes. Very much part of sex. Sometimes it is done as a foreplay - before sex and other times you just do it to satisfy your partner - even without penetration. Read more about it here - https://lovematters.in/hi/making-love/ways-to-make-love/oral-sex-top-fiv...
https://lovematters.in/hi/making-love/ways-to-make-love/oral-sex-myths-b...