Im in love with my best friend but is he gay/bi/straight/curious

I met this younger guy and made friends very quickly and these days we hang out with each other al the time, at his place but mostly mine and we also go out in my car to places. I am bisexual and when we first met he knew that I had had sexual experiences with one of his friends, i.e. that we had jerked each other and exposed ourselves to each other and had great oral sex (BJ). Then one day when we were chatting about sex, porn and his friend, I just put my hand on his crutch and felt his cock and he said nothing. I did that on several occasions and I really enjoyed it. Then one day we were in my car and we were talking about sex and he had a big wood on. I just moved closer and began rubbing it while it was still in his jogging pants. His cock felt hot and hard and I really wanted to pull it out and give him a bj, but I just continued rubbing it back and forth. He never stopped me and never said he did not enjoy it. This continued for a while and one evening at my place we both got drunk and watched some porn. We both got our cock out and began to jerk off and he allowed me to feel his cock. We were both drunk and ended up in bed and just slept worse for drink and nothing more happened. A few weeks later we fell out and did not see each other for about 5 or 6 months. Then someone gave me some weights and I called him to tell him he could have them. We met up, broke the ice and have been friends since. Only this time we are closer than we were before. I told him I was a bi-sexual and that I had given BJ and hand jobs to a few male guys and it did not bother him and he insists he is straight? We work out together now at my place and one day while he was semi naked wearing just shorts on his back lifting the weights I felt his cock and even placed my mouth on his crotch and kissed his cock while he was lifting the weights and he said nothing and did not stop me. A few weeks later after we finished our workout we went to the shower cubicle and stripped off. On stepping into the shower he said the water was too hot and asked me to test it (kinda inviting me to step into the shower with him). I was naked and stepped in to test the water and brushed my naked body against his and while testing the water I said it was ok and not too hot and gently squeezed his black cock. He jokingly protested but allowed me to do it again and acted as if he was shy at the fact that I was even looking at his penis. This same thing happened on two occasions now and I really wanted to take a shower with him but did not go through with it.

Now he spends all of his time with me and we sit together watching movies and listening to music. we now put our arms around each other and affectionately play with each other's ears, cheeks and stroke each others head. When ever we meet we hug each other and I kiss him on both cheeks as close to his mouth as I can and he is comfortable with that. While we watch movies together, I feel the inside of his leg and and sometimes move my hand as close to his cock and I can feel its warmth against my hand. He even invites me to sit close to him now when we watch movies or listen to music and he texts me all the time with seemingly jokes about me being gay/bi and about sexual connotations regarding his ass and his cock and balls and how he knows I like them and how how find his body really fit. He always tells me wen he has or is going to jerk off when he is at home and I have asked him to join me to do the same and he says next time. He has told me he loves me and has feelings for me as a friend and has told me that I have a nice looking cock and finds me handsome and attractive but insists he is straight? He tells me that he likes being with me and misses me when we are not together and enjoys my company and the fun we have and on a number of occasions recently I have turned to face him only to find he had been staring at me with a shine in his eyes. Many times I have sat on a cushion on the floor, while he is sat on the chair using the PC and I am always stroking his inner legs and squeezing them and moving my hand close to even touch his penis and sometimes lean my arm directly onto his cock. I can feel it under my arm and its warmth and have even known it to go semi-hard. On a few occasions he has got an erection and tried to hide it from me and I so wanted it in my mouth.

Recently I bought him a birthday gift and a Christmas gift and he was so happy and pleased with them and last week he came to my place and told me to close my eyes and said he had bought me a gift and said he knew I would like it cos he knew I liked what he had. I opened the gift and it was two boxes of underwear 2blue and 2 black. Then he asked me to take off what I had on and try them on in front of him.

He is a great friend, and so kind, caring, generous, supportive and lots more but I just do not know if he is really straight, bisexual, gay or just curious? I do not want to lose him as he is my best friend but I know I love him as I think about him all of the time and spend all my time with him. I have had loads of dreams and sexual thoughts about us and I have even told him how I find him sexually attractive, handsome, beautiful and that I think his body is lovely and that his cock and balls are so nice. I have told him I like his colour and the colour of his cock (he is kinda light brown and though he is black, he is very light brown). Having shared this with him, he has also told me that I too am handsome and an attractive guy and that I have a nice looking cock.

So someone help me out here and try and answer my questions above? I want him to be gay. or bi and want to have a sexual relationship with him even if we have to keep it a BIG secret. Do I risk our great friendship or just give him more tome to decide for himself what he wants and just allow him to experiment? Is he straight, gay, bi or just curious? PLEASE HELP ME!