Yes, he must...

One is worse than the other, let's choose the less dangerous... At least that way Lina will be next to him with his clothes, right?... She should surely help if there was any danger, right...? With that, he put the collar around his dick, and fasted it. It had many strips, he had it secured around his dick and balls. That took away all his dignity he had left... Now he could be pulled left and right by his cock... And all this was done by a girl he had known for years, but never knew this side of her.

Tom (embarrassed): So how do I look?...

Lina (giggling): Like somebody about to go for a walk with a mistress, now come along, time to go home!

And she grabbed the collar and started packing the blanket up. They were going on a different path this time, he only hoped nobody would be coming now! It would have been impossible to explain what was just happening to a stranger... They had a great time though, had a lot of fun and teasing up until now, but the teasing was just getting more intense now... From time to time, Lina pulled the collar, to get Tom come closer, other times she intentionally dropped something and as she bent down, she also pulled the collar to make Tom squat and get his manhood close to the ground, as **** by the pull on his dick and balls.