Mush is extremely shy at first but he is also VERY sweet and gentle. He and his companion will need a very laid back and easy going home. Quick movements and loud voices/sounds frighten him and he will most likely bolt in fear. He will need some time to warm up and trust someone but it will be well worth the effort! He came from a home with 40 cats so he has never had the benefit of quality, one on one attention and socializing. Hes counting on YOU to provide that. He gets more and more relaxed each day but there is still work to be done. He will gently rub against your leg if he trusts you and you are calm and gentle with him. He might even let you cup his chin and speak gently to him. It is so clear that he wants to get close but YOU have to be patient and accommodating with his needs. He will make a wonderful and loving companion if he is given the chance to shine. 
He came in with several companions and he would like to go home with his friend, Solaris. They will benefit from having familiar companionship. Just think of how rewarding it will be to see these boys open up and learn to trust you. They have so much love to give.