need answers pls especially from mums that re not first time mums pls.

Just wondering if my vagina ll ever go back to normal and if sex ll ever b the same again after birth?my friend is so worried for me and wants me to ve a c section as she feels normal birth will lossen my vagina,she also said my husband won't enjoy sex with me anymore cos is dick might b swimming all over 😢😢,she even suggested that I request my doctor to sticth it very tight after birth😲😲,pls what do u think?and are they any solutions to this plz.thaks a lot .