Angelina But I know because I have the keys
1) I've read the entire thread about your dad's belt (or rather your statements within it). I don't want to question what you write, but the situation you describe is - to put it mildly - very unusual. A man with no experience with chastity belts/cages decides to wear a belt for a year without any relief? Later, he wears the belt with virtually no problems and bravely endures discomfort and total lack of satisfaction? It's hard for me to imagine, but if it is, your dad is an extraordinary guy...
2) Just because you have a key doesn't mean your father isn't satisfying. Getting yourself ejaculated with a vibrator is not a big problem in this type of belt.