I do not think any of us can say for certain so here are some things to consider.

> he never seems to stay hard for a long time... and i know i pay enough attention down there and doing little things to turn him on like nibbling his earlobes and all that jazz.

* Arousal is part and parcel with a man's ability to become turned on by the physical and emotional presence of his partner. (If he is "just not that into you" then while he may become aroused, it may neither be strong or long lasting.)

* Arousal is conditional on maintaining a high level of arousal. Every man and woman has an arousal curve. They are bell-shaped curves of different sizes and dimensions. The leading edge of the man's is short and steep, whereas a woman's is shallow albeit wide (from left to right). Both curves have a flat plateau on the top. The trigger point of a climax or the point of no return is on the right trailing edge of the plateau. The trailing edge, post orgasm, for the man is steep and narrow. (The "feel good" portion lasts for perhaps an hour.) These same sensations can last all day for women !

* In order to build passion, excitement, anticipation, and tension, it is usually a requirement that a couple cover all the "bases", in otherwords, begin by setting the scene or the mood, sometimes hours before planning on intimacy. When the time does arrive, it is best to begin with "First Base"--Necking. These are kisses and caresses above the shoulders. "Second Base" involves the entire body exclusive of breasts and genitals--the erogenous zones. "Third" includes these areas, first outside through the clothing, then later with these areas exposed. "Home Base", well, that's foreplay including oral stimulation and perhaps intercourse. All of these caresses are ongoing and inclusive. This means that as you progress from one area of the body to another, you also go back and revisit previous areas. A+B +C +A&B, etc.

The female of the species requires a prolonged build up, whereas the typical male is up and ready within minutes. That said, we guys definitely do benefit from all the fooling around that we provide our partners. So, it is a win-win situation for both individuals.

What you should look at is whether or not you are bypassing the bases or moving too quickly through them. Also, if you are taking a really long time to go around the "bases", and do not give his penis some periodic attention, an erection can indeed begin to weaken. If you determine that this is what is happening, then tweak his penis a bit once in a while (perhaps more often than you are) with your hand(s) and/or mouth, just to keep it at it's peak so to speak.

Experience aside, any one of us can have a case of Performance Anxiety in which worry about whatever can cause an erection to weaken prematurely or never become strong to begin with.

> he is the first uncircumsized male i have been with... do you have to perform sexual acts differently? like blow jobs?

This depends upon the individual. The sensitivity of the uncircumsized glans can be different for each person. The two of you will have to determine this together. Know that the foreskin is also richly endowed with sensitive nerve endings so it is not necessary to retract the foreskin when giving a hand job and/or a blow job. On the other hand, if the nerves in the glans can take some degree of direct stimulation as is possible with a guy who has no foreskin, then lucky you as you now have two ways to play and build his excitement! Just understand that a certain segment of men with protected glans cannot stand much if any direct touching of their glans without a lot of time in which to condition the nerves. This can take months or years. If your guy happens to be one who can tolerate and enjoy some direct contact, then go for it!

As with all things sexual and romantic, work together, explore together, learn together, and find mutual happiness and pleasure as you learn about each other.