What is the erection status of the bottom partner?

I am curious to know whether the bottom partner attains partial erection, full erection or no erection at all during an encounter. Here is my own story, and I would appreciate your feedback from your own experience or as an opinion.

I was straight with a hidden homosexual inclination (i.e., I was probably bisexual) until about 6 months ago when I decided to give being a bottom a try. I had an encounter with a stranger who had an average cock. I enjoyed the experience, however, I didn’t get an erection throughout the encounter that lasted about 15 minutes. I had an orgasm within the first 3-4 minutes of penetration without erection. I should mention here that I usually get full and hard erection when I get excited.

Since then I have had only a few encounters, and all were with tops who had average or below average cocks. There was a little (rimming and touching) or no foreplay before actual penetration. I had partial erection during most of those few encounters but no full erection. All the guys were very excited and complimented me on my very sexy ass and sexy and tight asshole.

I am wondering why I didn’t have full erection although I was excited and horny and I was having a significant pleasure, and why I cum much faster than usual? Thinking about it, I thought it might had been because I was somewhat disappointed with the size of the cocks, or because of lack of serious foreplay, or because my asshole didn’t get overstretched with a big cock, or because anal arousal is different (high and fast), or because of an unknown reason.

Please, participate in this blog because I like to know if what happened to me is normal or unusual. I would appreciate sending me a message about your own opinion instead of writing your opinion on this blog.