Yes - STD's may be transmitted orally during oral/anal sex - including GC (gonorrhea), Chlamydia, Herpes and Hepatitis.
Ewe - izifo ezosulela ngokwabelana ngesondo ziyosulela naxa usabelana ngesondo ngomlomo/ngomva - kuquka iGC (ubhobhozo), iChlamydia, iHerpes kunye neHepatitis.