The phrase "huge temptation" means a strong desire or urge to do something, especially if it is something that might be considered wrong or harmful. Full definition
It's a huge temptation — I have a sitter two days a week now and so I could use that time to run errands or mentor young people or get groceries or to help with art projects at school — which are all valuable and good things! (sarahbessey.com)
The stunning sheen of gel nails makes simplicity a huge temptation, so why resist? (thefashionablehousewife.com)
These are a necessity in our homes but are also a huge temptation for your curious toddler — have you ever really looked at an outlet? (ourfamilyworld.com)