Gary McCann, 26, of Bray Street, Belfast and Aaron McCrory, 29, of Caledon Street, took a rucksack full of stock from a city shop.
They also broke into Soho Books, Gresham Street, and took £800 in cash.
The men had planned to contest the charges at Belfast Magistrates Court on Tuesday, but pleaded guilty to  burglary and theft.
The court heard McCann worked at the counter and McCrory was a security man in the city centre shop.
CCTV footage showed them filling a rucksack with sex toys and paraphernalia belonging to shop boss Ian Brown before leaving without paying at the end of their shift last October.
They were recorded coming back on the same night and entering without permission. Cash was stolen during that raid.
The men had been planning to fight the case by claiming they acted under duress.
A defence lawyer for McCrory said Soho Books was allegedly selling so-called legal highs at the time.
The barrister said these were an "absolute scourge on society".
"The very next day this shop closed," he said.
Separate criminal proceedings have been brought against the business for allegedly supplying a dangerous product, Novel Psychoactive Substances (NPS).
Neither McCann nor McCrory face charges in connection with that prosecution which has been taken by Belfast City Council.
Lawyers for both men said that they had been candid during police interviews.
The judge said the offences warranted a prison sentence, but he gave the two men credit for their guilty pleas and suspended the five-month jail terms for 12 months.

The 21-year-old loose-head prop played in the World Cup last year - and also against the Warriors in a pre-season match in Nova Scotia last August.
He has been training with the squad since arriving in Glasgow on Sunday.
"I talked to DTH [van der Merwe], Connor [Braid] and Taylor [Paris] and they all had good things to say about the club," said Sears-Duru.
"Glasgow play a really good style of rugby and I'm glad to be part of it.
"I'm still young, so hopefully I can learn a lot here and become a better player and continue to play for Canada and do well for Glasgow."

Mhairi Black won the Paisley and Renfrewshire South seat for the SNP in last month's general election.
The 20-year-old sat her final exam on Scottish politics shortly after being elected.
She graduated along with the rest of her class in a ceremony at the university on Friday.
Ms Black posted a photograph of herself in her gown on Twitter.
She wrote: "Overwhelmed by all the messages of support. They're really appreciated. It's been a great day for everyone involved."
Her graduation came seven weeks after being elected MP for Paisley and Renfrewshire South.
The student had yet to sit her final exam when she ousted Labour's Douglas Alexander to become the youngest member at Westminster since the Reform Act of 1832.
She won her seat by 5,500 votes after overturning former Shadow Foreign Secretary Douglas Alexander's 16,000 vote majority.
The MP admitted recently that it was "quite bizarre" returning to university after being elected an MP.
Speaking on BBC Radio Scotland, she said: "It was a brass neck walking into a room with people I've been studying with for years and they're all pulling their hair out applying for a million and one jobs and I'm like, 'Hi guys, how's it going?'."
A spokesman for the University of Glasgow said: "We would like to congratulate Mhairi Black, as we would all of our students who are graduating this summer.
"They have all worked extremely hard to earn their degrees and we wish them the very best for their future careers."

Billy Mankelow was found in a railway arch, on Swinegate near Commercial Garages, at 03:20 BST on Saturday. Police said he had been assaulted.
The 20-year-old from Tonbridge, Kent had surgery but died on Sunday.
A 31-year-old man from Leeds has been arrested on suspicion of murder and is being held in police custody.
Det Insp Mick Jackson, of British Transport Police, said Mr Mankelow had been living in the Hyde Park area of Leeds.
He added: "Our thoughts are with Billy's family at this difficult time."
Two Belfast men who stole £700 worth of sex toys have been given suspended prison sentences.
[NEXT_CONCEPT]
Canada international Djustice Sears-Duru has signed a contract with Glasgow Warriors until the end of the season.
[NEXT_CONCEPT]
The youngest MP in the House of Commons has graduated with a first class honours degree in politics from Glasgow University.
[NEXT_CONCEPT]
A man has been arrested on suspicion of murdering a 20-year-old found with severe head injuries near Leeds railway station.