I've done standing 69 many times but I will do it just for a very short period of time and only once in a while. The main reason why I don't like standing 69 is that you have now strangled her clit of valuble blood supply. A woman's clit will receive more blood flow when excited and this helps increase arousal and sensation. When you have her upside down her heart is now below her vagina by a good 18 inches and now the blood has to fight gravity to get to the pubic region and gravity is now causing the blood to rush to the head and upper body. Yeah some girls will like the head rush but in the end you are being counterproductive to causing her to have multiple orgasms. Besides, most girls have trouble performing oral on me to begin with much less upside down.


Also, during oral sex I like to pay attention to more than just her clit and vagina. There are some many erogenous zones on a female! With my hands busy holding her up, this becomes difficult to use them.